Door for silos.



G. J. PERKINS.

DOOR FORSILOS.

APPLICATION IILED MAR. a, 1913.

Patentd Dec. 16, 1913.

UNITE STATES PATENT OFFT CE.

CHARLES J. PERKINS, OF MANITOU, COLORADO, ASSIGNQR OF ONE-THIRD T0 JOHN T. M. JOHNSTON AND ONE-THIRD.T0 JAMES E. HOLDEN, BOTH OF KANSAS CITY,

MISSOURI.

DOOR FOR SILOS.

Specification of Letters Patent.

Patented Dec. 16, 1913.

Application filed March 3. 1913. Serial No. 751,955.

To all whom it may concern:

Be it known that I, CHARLES J. PERKINS, a citizen of the United States, and a resident of the city of Manitou, county of El Paso. and State of Colorado, have invented certain new and useful Improvements in Doors for Silos, of which the following is a specification.

My invention relates to silos and more specifically to improvements in the construction of the doorways of silos.

The object of my invent-ion is the production of a silo in which will be provided a door structure which will be durable and economical in. construction, built to withstand the influences of the weather or fire, and which will be eilicient in use.

Other objects will appear hereinafter.

The invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawing forming a part of this specification, and in which.

Figure 1 a horizontal section of a silo through the (loorway of the same illustrating the .)rcfei:'red form of my invention, the section being taken. on substantially line 00 of Fig. 2, Fig. 2 is a vertical longi' tudinal section taken on substantially line 7 1 of Fig. 1. Fig. 3 1s a perspective view iiiastrating the arrangement of the cross pieces in the doorway of the silo, and Fig. 4 is a perspective view illustrating the construction of the reinforcing bands employed in the structure.

The preferred form of construction as illustrated in the drawing comprises a silo having a. circular lateral wall which is constructed of blocks 2 of plastic material such as concrete or cement, said blocks being preferably of the double wedge-shaped form, as shown in the drawing, the construction of this wall being the subject mat ter of a. copending application, Serial No. 751,950, tiled March 3, 1913. The lateral wall 1 is reinforced at intervals by vertically spaced bands 3 which encircle said wall at the outer side thereof. The bands 3 are aranged in annular grooves or channels 4: formed in the outer surface of the wall 1, plastic sealing material, and preferably mortar 5 being arranged over the bands 3 to completely cover the same in order to protect the same against corrosion.

Formed in one side of the lateral wall 1 a vertically extending doorway 6 the opposite edges of which are parallel. Registering with the doorway ti is the conventional chute 7 which may be of the same construction as the wall 1.

The doorway (3 is traversed at intervals by vertically spaced transversely extending members 8, said members 8 being formed of plastic material, such as concrete or cement and are reinforced by longitudinally extending bars 5). The respective ends of the members 8 are set in the lateral edges of the doorway 6, the blocks 9 being cut 'away as at 10 in order to receive said ends of said members, as clearly shown in Fig. 3. The reinforcing bands 4 at the doorway 6 are connectedby means of socket members 11 withccircular sections or bars 12. the respective ends of which are threaded into the socket members 11, as clearly shown in Fig. l. The members 12 engage elongated grooves or recesses 13 which are formed in the outer sides of the members 8, said sections 12 thus serving to securely hold said members 8 in operative position. In order to protect the reinforcing members 12 against corrosion or tire, sealing material such as mortar, as shown at 14, is ar 'anged in said recesses over said members 12 to completely inclose the latter.

Removably arranged in the doorway 6 between the transversely extending members 8' are door sections 15, the peripheral edges of said sections being beveled for engagement with the bevel edges 16 of the cross pieces 8 and the lateral edges of said doorway, as clearly shown in the several views. \Vith this arrangement, it will be seen that the door sections. when arranged in operative position, will be held against outward displacement, but will be free for inward movement so that as the ensilage in the silo is emptied therefrom, said door sections may be successively removed from the inside to correspond with the level of the ensilage in the silo. 'With the arrangement disclosed it will be seen that each cross piece 8 will serve in the capacity of a sill for the next upper door section 15 and as a cap stone for the next lower door section. Also, said cross pieces will serve as the rungs of precise details of construction set" forth,

but desire to avail myself of such varia-' tions and modifications as come Within the scope of the appended claims.

Having described my invention What I claim as'new and desire to secure by Letters Patent is:

1. A silo comprising a lateral Wall hav ing a vertically extending doorway; transversely extending members traversing said doorway at intervals; and reinforcing bands encircling said silo and engaging against the outer sides of said transversely extending members, said outer sides of said members being provided with longitudinally extending recesses to accommodate said bands, substantially as described.

'2. A silo comprising a lateral Wall hav ing a vertically extendingdoorway; transversely extending members traversing said doorway at intervals; reinforcing bands enutilized in climbing circling menses outer sides of said transversely extending members, said outer sides of said members being provided With longitudinally extending recesses to accommodate said bands; and sealing material arranged in said recesses over said bands completely inclosing the latter, substantially as described.

3. A silo comprising a lateral Wall formed of plastic material, said Wall having a vertically extending doorway; transversely extending members of plastic material traversing said doorway at intervals; reinforcing bands encircling said silo and engaging against the outer sides of said transversely extending members, said outer sides of said members being provided .With longitudinally extending grooves for the accommodation of said bands; plastic sealing material arranged in said recesses over said bands completely inclosing the latter; and .door sections arranged between said transversely extending members and engaging against the inner sides of the latter-and the corresponding edges of said doorway, substan' tially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

CHARLES J. PERKINS.

WVitnesses;

JOSHUA R. H. Por'rs, HELEN F. LILLIs.

'Uopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents;

Washington, D. 0. 

